package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.entity.Employee;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.swing.text.Utilities;
import java.time.LocalDateTime;
import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {
    @Autowired
    private CategoryMapper categoryMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetmealMapper setmealMapper;
     /**
     * 新增分类
     * @param categoryDTO
     */
    public void save(CategoryDTO categoryDTO){
        Category category=new Category();
        BeanUtils.copyProperties(categoryDTO,category);

        category.setStatus(StatusConstant.DISABLE);

        //category.setCreateTime(LocalDateTime.now());
        //category.setUpdateTime(LocalDateTime.now());

        //category.setUpdateUser(BaseContext.getCurrentId());
        //category.setCreateUser(BaseContext.getCurrentId());
        categoryMapper.add(category);
    }
    /**
     * 分页查询
     * @param categoryPageQueryDTO
     */
    public PageResult query(CategoryPageQueryDTO categoryPageQueryDTO){
        PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());

        Page<Category> page= categoryMapper.pageQuery(categoryPageQueryDTO);

        long total=page.getTotal();
        List<Category> records = page.getResult();

        return new PageResult(total,records);
    }

    /**
     * 分类启用和禁用
     * @param status
     * @param id
     * @param type
     */
    public void startOrStop(Integer status, Long id, Integer type){
        Category category=Category.builder().status(status).id(id).type(type).updateTime(LocalDateTime.now()).updateUser(BaseContext.getCurrentId()).build();
        categoryMapper.update(category);
    }

    /**
     * 编辑
     * @param categoryDTO
     */
    public void update(CategoryDTO categoryDTO){
        Category category=new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        //category.setUpdateUser(BaseContext.getCurrentId());
        //category.setUpdateTime(LocalDateTime.now());
        categoryMapper.update(category);

    }
    /**
     * 删除
     * @param id
     */
    public void delete(Long id){
        Integer count=dishMapper.countByCategoryId(id);
        if(count>0)
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
        count=setmealMapper.countByCategoryId(id);
        if(count>0)
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);

        categoryMapper.delete(id);
    }
    /**
     * 分页查询
     *
     * @param type
     */
    public List<Category> list(Integer type){
        List<Category> list=categoryMapper.getBytype(type);
        return list;
    }
}
